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476 lines
13 KiB
Go
476 lines
13 KiB
Go
/*
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Copyright (c) 2015, Emir Pasic
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package treemap
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import (
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"fmt"
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"testing"
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)
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func TestMapPut(t *testing.T) {
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m := NewWithIntComparator()
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m.Put(5, "e")
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m.Put(6, "f")
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m.Put(7, "g")
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m.Put(3, "c")
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m.Put(4, "d")
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m.Put(1, "x")
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m.Put(2, "b")
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m.Put(1, "a") //overwrite
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if actualValue := m.Size(); actualValue != 7 {
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t.Errorf("Got %v expected %v", actualValue, 7)
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}
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if actualValue, expectedValue := m.Keys(), []interface{}{1, 2, 3, 4, 5, 6, 7}; !sameElements(actualValue, expectedValue) {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue, expectedValue := m.Values(), []interface{}{"a", "b", "c", "d", "e", "f", "g"}; !sameElements(actualValue, expectedValue) {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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// key,expectedValue,expectedFound
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tests1 := [][]interface{}{
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{1, "a", true},
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{2, "b", true},
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{3, "c", true},
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{4, "d", true},
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{5, "e", true},
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{6, "f", true},
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{7, "g", true},
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{8, nil, false},
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}
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for _, test := range tests1 {
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// retrievals
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actualValue, actualFound := m.Get(test[0])
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if actualValue != test[1] || actualFound != test[2] {
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t.Errorf("Got %v expected %v", actualValue, test[1])
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}
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}
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}
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func TestMapRemove(t *testing.T) {
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m := NewWithIntComparator()
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m.Put(5, "e")
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m.Put(6, "f")
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m.Put(7, "g")
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m.Put(3, "c")
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m.Put(4, "d")
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m.Put(1, "x")
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m.Put(2, "b")
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m.Put(1, "a") //overwrite
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m.Remove(5)
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m.Remove(6)
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m.Remove(7)
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m.Remove(8)
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m.Remove(5)
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if actualValue, expectedValue := m.Keys(), []interface{}{1, 2, 3, 4}; !sameElements(actualValue, expectedValue) {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue, expectedValue := m.Values(), []interface{}{"a", "b", "c", "d"}; !sameElements(actualValue, expectedValue) {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue := m.Size(); actualValue != 4 {
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t.Errorf("Got %v expected %v", actualValue, 4)
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}
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tests2 := [][]interface{}{
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{1, "a", true},
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{2, "b", true},
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{3, "c", true},
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{4, "d", true},
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{5, nil, false},
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{6, nil, false},
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{7, nil, false},
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{8, nil, false},
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}
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for _, test := range tests2 {
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actualValue, actualFound := m.Get(test[0])
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if actualValue != test[1] || actualFound != test[2] {
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t.Errorf("Got %v expected %v", actualValue, test[1])
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}
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}
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m.Remove(1)
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m.Remove(4)
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m.Remove(2)
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m.Remove(3)
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m.Remove(2)
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m.Remove(2)
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if actualValue, expectedValue := fmt.Sprintf("%s", m.Keys()), "[]"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue, expectedValue := fmt.Sprintf("%s", m.Values()), "[]"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue := m.Size(); actualValue != 0 {
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t.Errorf("Got %v expected %v", actualValue, 0)
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}
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if actualValue := m.Empty(); actualValue != true {
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t.Errorf("Got %v expected %v", actualValue, true)
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}
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}
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func sameElements(a []interface{}, b []interface{}) bool {
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if len(a) != len(b) {
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return false
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}
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for _, av := range a {
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found := false
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for _, bv := range b {
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if av == bv {
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found = true
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break
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}
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}
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if !found {
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return false
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}
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}
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return true
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}
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func TestMapEach(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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count := 0
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m.Each(func(key interface{}, value interface{}) {
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count++
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if actualValue, expectedValue := count, value; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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switch value {
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case 1:
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if actualValue, expectedValue := key, "a"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case 2:
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if actualValue, expectedValue := key, "b"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case 3:
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if actualValue, expectedValue := key, "c"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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default:
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t.Errorf("Too many")
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}
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})
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}
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func TestMapMap(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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mappedMap := m.Map(func(key1 interface{}, value1 interface{}) (key2 interface{}, value2 interface{}) {
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return key1, "mapped: " + key1.(string)
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})
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if actualValue, _ := mappedMap.Get("a"); actualValue != "mapped: a" {
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t.Errorf("Got %v expected %v", actualValue, "mapped: a")
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}
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if actualValue, _ := mappedMap.Get("b"); actualValue != "mapped: b" {
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t.Errorf("Got %v expected %v", actualValue, "mapped: b")
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}
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if actualValue, _ := mappedMap.Get("c"); actualValue != "mapped: c" {
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t.Errorf("Got %v expected %v", actualValue, "mapped: c")
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}
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if mappedMap.Size() != 3 {
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t.Errorf("Got %v expected %v", mappedMap.Size(), 3)
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}
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}
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func TestMapSelect(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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selectedMap := m.Select(func(key interface{}, value interface{}) bool {
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return key.(string) >= "a" && key.(string) <= "b"
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})
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if actualValue, _ := selectedMap.Get("a"); actualValue != 1 {
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t.Errorf("Got %v expected %v", actualValue, "value: a")
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}
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if actualValue, _ := selectedMap.Get("b"); actualValue != 2 {
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t.Errorf("Got %v expected %v", actualValue, "value: b")
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}
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if selectedMap.Size() != 2 {
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t.Errorf("Got %v expected %v", selectedMap.Size(), 2)
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}
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}
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func TestMapAny(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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any := m.Any(func(key interface{}, value interface{}) bool {
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return value.(int) == 3
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})
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if any != true {
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t.Errorf("Got %v expected %v", any, true)
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}
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any = m.Any(func(key interface{}, value interface{}) bool {
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return value.(int) == 4
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})
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if any != false {
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t.Errorf("Got %v expected %v", any, false)
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}
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}
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func TestMapAll(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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all := m.All(func(key interface{}, value interface{}) bool {
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return key.(string) >= "a" && key.(string) <= "c"
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})
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if all != true {
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t.Errorf("Got %v expected %v", all, true)
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}
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all = m.All(func(key interface{}, value interface{}) bool {
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return key.(string) >= "a" && key.(string) <= "b"
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})
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if all != false {
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t.Errorf("Got %v expected %v", all, false)
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}
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}
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func TestMapFind(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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foundKey, foundValue := m.Find(func(key interface{}, value interface{}) bool {
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return key.(string) == "c"
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})
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if foundKey != "c" || foundValue != 3 {
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t.Errorf("Got %v -> %v expected %v -> %v", foundKey, foundValue, "c", 3)
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}
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foundKey, foundValue = m.Find(func(key interface{}, value interface{}) bool {
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return key.(string) == "x"
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})
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if foundKey != nil || foundValue != nil {
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t.Errorf("Got %v at %v expected %v at %v", foundValue, foundKey, nil, nil)
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}
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}
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func TestMapChaining(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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chainedMap := m.Select(func(key interface{}, value interface{}) bool {
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return value.(int) > 1
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}).Map(func(key interface{}, value interface{}) (interface{}, interface{}) {
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return key.(string) + key.(string), value.(int) * value.(int)
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})
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if actualValue := chainedMap.Size(); actualValue != 2 {
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t.Errorf("Got %v expected %v", actualValue, 2)
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}
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if actualValue, found := chainedMap.Get("aa"); actualValue != nil || found {
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t.Errorf("Got %v expected %v", actualValue, nil)
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}
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if actualValue, found := chainedMap.Get("bb"); actualValue != 4 || !found {
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t.Errorf("Got %v expected %v", actualValue, 4)
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}
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if actualValue, found := chainedMap.Get("cc"); actualValue != 9 || !found {
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t.Errorf("Got %v expected %v", actualValue, 9)
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}
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}
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func TestMapIteratorNextOnEmpty(t *testing.T) {
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m := NewWithStringComparator()
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it := m.Iterator()
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it = m.Iterator()
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for it.Next() {
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t.Errorf("Shouldn't iterate on empty map")
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}
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}
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func TestMapIteratorPrevOnEmpty(t *testing.T) {
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m := NewWithStringComparator()
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it := m.Iterator()
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it = m.Iterator()
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for it.Prev() {
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t.Errorf("Shouldn't iterate on empty map")
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}
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}
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func TestMapIteratorNext(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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it := m.Iterator()
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count := 0
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for it.Next() {
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count++
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key := it.Key()
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value := it.Value()
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switch key {
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case "a":
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if actualValue, expectedValue := value, 1; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case "b":
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if actualValue, expectedValue := value, 2; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case "c":
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if actualValue, expectedValue := value, 3; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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default:
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t.Errorf("Too many")
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}
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if actualValue, expectedValue := value, count; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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}
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if actualValue, expectedValue := count, 3; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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}
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func TestMapIteratorPrev(t *testing.T) {
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m := NewWithStringComparator()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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it := m.Iterator()
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for it.Next() {
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}
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countDown := m.Size()
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for it.Prev() {
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key := it.Key()
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value := it.Value()
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switch key {
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case "a":
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if actualValue, expectedValue := value, 1; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case "b":
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if actualValue, expectedValue := value, 2; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case "c":
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if actualValue, expectedValue := value, 3; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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default:
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t.Errorf("Too many")
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}
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if actualValue, expectedValue := value, countDown; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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countDown--
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}
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if actualValue, expectedValue := countDown, 0; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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}
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func TestMapIteratorBegin(t *testing.T) {
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m := NewWithIntComparator()
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it := m.Iterator()
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it.Begin()
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m.Put(3, "c")
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m.Put(1, "a")
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m.Put(2, "b")
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for it.Next() {
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}
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it.Begin()
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it.Next()
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if key, value := it.Key(), it.Value(); key != 1 || value != "a" {
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t.Errorf("Got %v,%v expected %v,%v", key, value, 1, "a")
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}
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}
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func TestMapTreeIteratorEnd(t *testing.T) {
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m := NewWithIntComparator()
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it := m.Iterator()
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m.Put(3, "c")
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m.Put(1, "a")
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m.Put(2, "b")
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it.End()
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it.Prev()
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if key, value := it.Key(), it.Value(); key != 3 || value != "c" {
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t.Errorf("Got %v,%v expected %v,%v", key, value, 3, "c")
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}
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}
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func TestMapIteratorFirst(t *testing.T) {
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m := NewWithIntComparator()
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m.Put(3, "c")
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m.Put(1, "a")
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m.Put(2, "b")
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it := m.Iterator()
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if actualValue, expectedValue := it.First(), true; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if key, value := it.Key(), it.Value(); key != 1 || value != "a" {
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t.Errorf("Got %v,%v expected %v,%v", key, value, 1, "a")
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}
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}
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func TestMapIteratorLast(t *testing.T) {
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m := NewWithIntComparator()
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m.Put(3, "c")
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m.Put(1, "a")
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m.Put(2, "b")
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it := m.Iterator()
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if actualValue, expectedValue := it.Last(), true; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if key, value := it.Key(), it.Value(); key != 3 || value != "c" {
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t.Errorf("Got %v,%v expected %v,%v", key, value, 3, "c")
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}
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}
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func BenchmarkMap(b *testing.B) {
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for i := 0; i < b.N; i++ {
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m := NewWithIntComparator()
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for n := 0; n < 1000; n++ {
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m.Put(n, n)
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}
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for n := 0; n < 1000; n++ {
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m.Remove(n)
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}
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}
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}
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